5/16" x 6-1/2" High Impact Full Head Carbide Drill Bit, SDS+ DW5524-SBD

Dewalt's 5/16-in x 6-1/2-in High Impact Full Head Carbide SDS Plus Drill Bit (DW5524-SBD) is a professional-grade masonry accessory engineered for extreme durability and high-speed drilling in reinforced concrete. Part of the Elite Series, this bit features a full head carbide design that provides significantly more carbide than standard bits, allowing it to withstand rebar strikes and resist fatigue. The innovative Iron Blast Technology strengthens the bit's surface, while the elongated four-flute design facilitates rapid debris removal to prevent binding and maintain drilling efficiency on the job site.
Key Features
Full head carbide design delivers 2X more carbide for longer life and superior performance in hard concrete.
Iron Blast Technology high-speed blasting process strengthens the bit to significantly reduce the risk of breakage.
Rebar strike resistant geometry is specifically designed to handle accidental contact with steel reinforcement.
Four-flute design quickly moves dust and debris away from the tip for faster, more efficient drilling.
Anchor wear mark indicator provides a visual reference to ensure holes remain at the accurate diameter for safe anchor installation.
SDS Plus shank ensures a secure, universal fit in all compatible rotary hammer drills.
4-inch usable drilling depth is ideal for standard anchoring and through-hole applications.